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Thread-Topic: isolate_lru_pages(): kernel BUG at mm/vmscan.c:1689! Thread-Index: AdUAdyzy8F3SUITdRv6SToKOnShIeg== Date: Wed, 1 May 2019 23:49:10 +0000 Message-ID: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: msip_labels: MSIP_Label_f42aa342-8706-4288-bd11-ebb85995028c_Enabled=True; MSIP_Label_f42aa342-8706-4288-bd11-ebb85995028c_SiteId=72f988bf-86f1-41af-91ab-2d7cd011db47; MSIP_Label_f42aa342-8706-4288-bd11-ebb85995028c_Owner=decui@microsoft.com; MSIP_Label_f42aa342-8706-4288-bd11-ebb85995028c_SetDate=2019-05-01T23:48:58.2349667Z; MSIP_Label_f42aa342-8706-4288-bd11-ebb85995028c_Name=General; MSIP_Label_f42aa342-8706-4288-bd11-ebb85995028c_Application=Microsoft Azure Information Protection; MSIP_Label_f42aa342-8706-4288-bd11-ebb85995028c_ActionId=3c696052-eebd-4a0b-9aa7-5a558921fc8b; MSIP_Label_f42aa342-8706-4288-bd11-ebb85995028c_Extended_MSFT_Method=Automatic authentication-results: spf=none (sender IP is ) smtp.mailfrom=decui@microsoft.com; x-originating-ip: [2001:4898:80e8:b:722c:5528:2655:ac0d] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 7d824564-a027-4323-8bfa-08d6ce8f9c09 x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: BCL:0;PCL:0;RULEID:(2390118)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600141)(711020)(4605104)(4618075)(2017052603328)(7193020);SRVR:PU1P153MB0185; x-ms-traffictypediagnostic: PU1P153MB0185: x-ld-processed: 72f988bf-86f1-41af-91ab-2d7cd011db47,ExtAddr x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:6108; x-forefront-prvs: 00246AB517 x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(136003)(396003)(346002)(376002)(39860400002)(366004)(199004)(189003)(66446008)(71200400001)(7736002)(71190400001)(68736007)(2906002)(33656002)(10290500003)(256004)(478600001)(6506007)(8990500004)(73956011)(8676002)(81166006)(10090500001)(5660300002)(8936002)(74316002)(86362001)(4743002)(7416002)(6116002)(52536014)(81156014)(486006)(102836004)(66556008)(99286004)(14444005)(9686003)(66946007)(305945005)(64756008)(186003)(86612001)(7696005)(25786009)(46003)(14454004)(54906003)(53936002)(6436002)(76116006)(66476007)(110136005)(476003)(55016002)(4326008)(2501003)(316002)(22452003);DIR:OUT;SFP:1102;SCL:1;SRVR:PU1P153MB0185;H:PU1P153MB0169.APCP153.PROD.OUTLOOK.COM;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;A:1;MX:1; received-spf: None (protection.outlook.com: microsoft.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: oRXFCSBW9u5oxx5AviEQAbur9r3j80usdzzs5hMaH4jebpX2UqIcFHn6g9e0Ypw2b5fHfqL+Ung9896c+kFUzf2gmN2n5SYl99+Y9uwgoZCTFe9IjnZB6DWrjZF/l4CswP6mCi9TZ1w4tmEdKfZjVDMpHiqT0+yFXphdWMLsvRfHxdkfH/E/JeVq8iAl6ls675Dih8a7HrCALEp2EjXGxTqis6KKx3AA4sdn6iwFs5FK7sSwxwDSbPCtH9GeooYt+4I3yys2Z3+dFIOSEFElb/CQoaLwyzGVdn6hPWVOiUPAuhqveAgnl70thioKPYkw0XvEdzBz0GYftnHMYTfw640tOGfJ+ocV3rZbTST5254ODgPBJD/vAqlyuMkbI0TbHE/lUU+eJvXAkR+5n8X/QPWPQ9dmhkakT+mcbpSBQ40= Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: microsoft.com X-MS-Exchange-CrossTenant-Network-Message-Id: 7d824564-a027-4323-8bfa-08d6ce8f9c09 X-MS-Exchange-CrossTenant-originalarrivaltime: 01 May 2019 23:49:10.9742 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-Transport-CrossTenantHeadersStamped: PU1P153MB0185 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Hi, Today I got the below BUG in isolate_lru_pages() when building the kernel. My current running kernel, which exhibits the BUG, is based on the mainline= kernel's commit=20 262d6a9a63a3 ("Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/= pub/scm/linux/kernel/git/tip/tip"). Looks nobody else reported the issue recently. So far I only hit the BUG once and I don't know how to reproduce it again, = so this is just a FYI. Thanks, -- Dexuan The crash log is: [ 1626.194411] ------------[ cut here ]------------ [ 1626.197031] kernel BUG at mm/vmscan.c:1689! [ 1626.197031] invalid opcode: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC PTI [ 1626.207112] CPU: 2 PID: 86 Comm: kswapd0 Not tainted 5.0.0+ #67 [ 1626.207112] Hardware name: Microsoft Corporation Virtual Machine/Virtual= Machine, BIOS 090008 12/07/2018 [ 1626.207112] RIP: 0010:isolate_lru_pages+0x4ab/0x4c0 [ 1626.207112] Code: e8 6a bc f1 ff 85 c0 75 e0 48 c7 c2 40 dc 03 af be 41 = 01 00 00 48 c7 c7 de ef 06 af c6 05 2e 6c 17 01 01 e8 d2 8c ef ff eb bf <0f= > 0b e8 be 50 e9 ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 0f [ 1626.245025] RSP: 0000:ffffa051c0c73ac8 EFLAGS: 00010082 [ 1626.258863] RAX: 00000000ffffffea RBX: ffff8cdb229afc20 RCX: dead0000000= 00200 [ 1626.258863] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffe0f8035= 43000 [ 1626.258863] RBP: 000000000000000c R08: ffffe0f8033c2708 R09: 00000000000= 00002 [ 1626.258863] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000000= 0000b [ 1626.258863] R13: 000000000000000b R14: ffffa051c0c73de0 R15: ffffe0f8035= 43008 [ 1626.258863] FS: 0000000000000000(0000) GS:ffff8cdb43280000(0000) knlGS:= 0000000000000000 [ 1626.258863] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1626.303683] CR2: 0000563ea696da18 CR3: 00000000e07f0005 CR4: 00000000003= 606e0 [ 1626.303683] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 00000000000= 00000 [ 1626.303683] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 00000000000= 00400 [ 1626.303683] Call Trace: [ 1626.327319] shrink_inactive_list+0xf9/0x700 [ 1626.327319] ? __lock_acquire+0x42d/0x1190 [ 1626.327319] ? inactive_list_is_low+0x77/0x2c0 [ 1626.327319] shrink_node_memcg+0x206/0x780 [ 1626.327319] ? percpu_ref_put_many+0x8c/0x130 [ 1626.327319] ? percpu_ref_put_many+0x8c/0x130 [ 1626.327319] shrink_node+0xcf/0x470 [ 1626.355957] balance_pgdat+0x2d9/0x560 [ 1626.355957] kswapd+0x263/0x560 [ 1626.355957] ? finish_wait+0x80/0x80 [ 1626.355957] ? balance_pgdat+0x560/0x560 [ 1626.355957] kthread+0x11b/0x140 [ 1626.373956] ? kthread_create_on_node+0x60/0x60 [ 1626.373956] ret_from_fork+0x24/0x30 [ 1626.373956] Modules linked in: crct10dif_pclmul crc32_pclmul ghash_clmul= ni_intel aesni_intel aes_x86_64 crypto_simd cryptd glue_helper serio_raw hy= perv_fb evdev autofs4 hid_generic hid_hyperv hv_netvsc hyperv_keyboard hid = psmouse i2c_piix4 hv_vmbus atkbd i2c_core [ 1626.373956] ---[ end trace b148bf262999856d ]--- [ 1626.373956] RIP: 0010:isolate_lru_pages+0x4ab/0x4c0 [ 1626.373956] Code: e8 6a bc f1 ff 85 c0 75 e0 48 c7 c2 40 dc 03 af be 41 = 01 00 00 48 c7 c7 de ef 06 af c6 05 2e 6c 17 01 01 e8 d2 8c ef ff eb bf <0f= > 0b e8 be 50 e9 ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 0f [ 1626.373956] RSP: 0000:ffffa051c0c73ac8 EFLAGS: 00010082 [ 1626.373956] RAX: 00000000ffffffea RBX: ffff8cdb229afc20 RCX: dead0000000= 00200 [ 1626.373956] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffe0f8035= 43000 [ 1626.373956] RBP: 000000000000000c R08: ffffe0f8033c2708 R09: 00000000000= 00002 [ 1626.373956] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000000= 0000b [ 1626.373956] R13: 000000000000000b R14: ffffa051c0c73de0 R15: ffffe0f8035= 43008 [ 1626.373956] FS: 0000000000000000(0000) GS:ffff8cdb43280000(0000) knlGS:= 0000000000000000 [ 1626.373956] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1626.373956] CR2: 0000563ea696da18 CR3: 00000000e07f0005 CR4: 00000000003= 606e0 [ 1626.373956] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 00000000000= 00000 [ 1626.373956] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 00000000000= 00400 [ 1626.373956] BUG: sleeping function called from invalid context at includ= e/linux/percpu-rwsem.h:34 [ 1626.373956] in_atomic(): 1, irqs_disabled(): 1, pid: 86, name: kswapd0 [ 1626.373956] INFO: lockdep is turned off. [ 1626.373956] irq event stamp: 998186 [ 1626.373956] hardirqs last enabled at (998185): [] _ra= w_spin_unlock_irq+0x29/0x50 [ 1626.373956] hardirqs last disabled at (998186): [] _ra= w_spin_lock_irq+0xf/0x40 [ 1626.520571] softirqs last enabled at (993564): [] __d= o_softirq+0x38b/0x498 [ 1626.520571] softirqs last disabled at (993557): [] irq= _exit+0xdb/0xf0 [ 1626.520571] Preemption disabled at: [ 1626.520571] [<0000000000000000>] (null) [ 1626.520571] CPU: 2 PID: 86 Comm: kswapd0 Tainted: G D 5.0= .0+ #67 [ 1626.520571] Hardware name: Microsoft Corporation Virtual Machine/Virtual= Machine, BIOS 090008 12/07/2018 [ 1626.520571] Call Trace: [ 1626.520571] dump_stack+0x67/0x90 [ 1626.520571] ___might_sleep.cold.78+0xf0/0x104 [ 1626.520571] exit_signals+0x30/0x2d0 [ 1626.520571] ? finish_wait+0x80/0x80 [ 1626.520571] do_exit+0xb0/0xc90 [ 1626.520571] ? balance_pgdat+0x560/0x560 [ 1626.520571] ? kthread+0x11b/0x140 [ 1626.520571] rewind_stack_do_exit+0x17/0x20 [ 1626.579941] note: kswapd0[86] exited with preempt_count 1 [ 1691.170873] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 1691.174869] rcu: 5-...0: (6 ticks this GP) idle=3D4e2/1/0x4000000000= 000000 softirq=3D19854/19854 fqs=3D8114 last_accelerate: 0dd1/4d4e, Nonlazy= posted: .L. [ 1691.174869] rcu: (detected by 1, t=3D16254 jiffies, g=3D163449, q=3D= 3759) [ 1691.174869] Sending NMI from CPU 1 to CPUs 5: [ 1691.174869] NMI backtrace for cpu 5 [ 1691.174869] CPU: 5 PID: 6477 Comm: ld Tainted: G D W 5.0.0+= #67 [ 1691.174869] Hardware name: Microsoft Corporation Virtual Machine/Virtual= Machine, BIOS 090008 12/07/2018 [ 1691.174869] RIP: 0010:queued_spin_lock_slowpath+0x2b/0x1e0 [ 1691.174869] Code: 1f 44 00 00 41 54 55 53 48 89 fb 0f 1f 44 00 00 ba 01 = 00 00 00 8b 03 85 c0 75 0d f0 0f b1 13 85 c0 75 f2 5b 5d 41 5c c3 f3 90 e9 81 fe 00 01 00 00 74 44 81 e6 00 ff ff ff 75 71 f0 0f ba 2b [ 1691.174869] RSP: 0018:ffffa051c8dafb88 EFLAGS: 00000002 [ 1691.174869] RAX: 0000000000000001 RBX: ffff8cdb47804b80 RCX: 605139ec000= 00000 [ 1691.174869] RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffff8cdb478= 04b80 [ 1691.174869] RBP: 0000000000000246 R08: 0000000091512c45 R09: 00000000000= 00001 [ 1691.174869] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000000= 00000 [ 1691.174869] R13: ffffffffae1d4fe0 R14: ffff8cdb47800000 R15: ffffe0f8030= 067c0 [ 1691.174869] FS: 00007f9b6e162b80(0000) GS:ffff8cdb43340000(0000) knlGS:= 0000000000000000 [ 1691.174869] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1691.174869] CR2: 00007f9b5648b000 CR3: 00000000e07f0006 CR4: 00000000003= 606e0 [ 1691.174869] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 00000000000= 00000 [ 1691.174869] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 00000000000= 00400 [ 1691.174869] Call Trace: [ 1691.174869] do_raw_spin_lock+0xab/0xb0 [ 1691.174869] _raw_spin_lock_irqsave+0x40/0x50 [ 1691.174869] ? pagevec_lru_move_fn+0x6c/0xd0 [ 1691.174869] pagevec_lru_move_fn+0x6c/0xd0 [ 1691.174869] __lru_cache_add+0x6b/0xa0 [ 1691.174869] add_to_page_cache_lru+0x76/0xc0 [ 1691.174869] pagecache_get_page+0xf2/0x2d0 [ 1691.174869] grab_cache_page_write_begin+0x1c/0x40 [ 1691.174869] ext4_da_write_begin+0xe5/0x500 [ 1691.174869] generic_perform_write+0xf4/0x1c0 [ 1691.174869] __generic_file_write_iter+0xfa/0x1c0 [ 1691.174869] ? generic_write_checks+0x4c/0xb0 [ 1691.174869] ext4_file_write_iter+0xc6/0x3f0 [ 1691.174869] new_sync_write+0x115/0x180 [ 1691.174869] vfs_write+0xb7/0x1b0 [ 1691.174869] ksys_write+0x52/0xc0 [ 1691.174869] do_syscall_64+0x5e/0x200 [ 1691.174869] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1691.174869] RIP: 0033:0x7f9b6e48afd4 [ 1691.174869] Code: 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b3 0f 1f 80 = 00 00 00 00 48 8d 05 29 f7 0d 00 8b 00 85 c0 75 13 b8 01 00 00 00 0f 05 <48= > 3d 00 f0 ff ff 77 54 c3 0f 1f 00 41 54 49 89 d4 55 48 89 f5 53 [ 1691.174869] RSP: 002b:00007ffcb3925b18 EFLAGS: 00000246 ORIG_RAX: 000000= 0000000001 [ 1691.174869] RAX: ffffffffffffffda RBX: 000000000dfd4000 RCX: 00007f9b6e4= 8afd4 [ 1691.174869] RDX: 000000000dfd4000 RSI: 00007f9b5e07a3a0 RDI: 00000000000= 0004e [ 1691.174869] RBP: 00007f9b5e07a3a0 R08: 000000000dfd4000 R09: 00000000000= 00000 [ 1691.174869] R10: 000000000000000d R11: 0000000000000246 R12: 0000563ea61= 763a0 [ 1691.174869] R13: 000000000dfd4000 R14: 000000000dfd4e20 R15: 00007f9b6e5= 61760